L-Theanine is a unique amino acid found primarily in green tea. It is known for its ability to promote relaxation and support a calm, focused state of mind without causing drowsiness. Solgar's L-Theanine is a friendly formula that helps to support restful sleep, improve cognitive function and enhance overall well-being. This product is ideal for those who want to counteract the effects of stress while maintaining mental performance. It is non-gmo, gluten-free and suitable for vegetarians.